Skip to main content
Act-On Software

Sender Policy Framework (SPF) Overview

A Sender Policy Framework (SPF) is an email authentication system that allows the owner of a domain to specify which mail servers they use to send mail. SPF adds a layer of security to your emails by validating that the message is being sent from a legitimate source.

Here's how SPF works:

SPF.png

(Click image for larger version)

Similarly to DKIM, SPF verifies that emails are really coming from you. Your 'SPF record' is essentially a note in your DNS that Act-On has permission to send messages on your behalf. If Act-On is not specified in this SPF entry, most email servers will assume that we do not have permission to send your emails. This means that your messages will automatically be considered questionable and may not be delivered to your recipients.

To set up SPF, please see Required Technical Setup.

  • Was this article helpful?

Have a question about this topic?

Ask the community!